This mega list of 100 app contain the most popular posts we have written since the start of Smart Apps for Kids back in 2011. I dug through thousands of posts and found the Top 100 Completely FREE Preschool Apps (no in-app purchases).

Though I am calling it a Top 100, that is the number of posts containing completely free apps. There are actually a total of 572 FREE apps! Yes, 572 apps that will cost you nothing and do not contain in-app purchases for anything. Enjoy and be sure to share with your friends!

51. DialSafe Pro

Teach your child proper phone usage and safety with an app that lets them actually practice it! DialSafe is designed to teach these critical skills in a kid friendly manner through the use of animated lessons, skill building games, practice sessions, and even a realistic phone simulator. DialSafe helps provide a comprehensive learning experience in a safe environment where the child can both explore and learn.

52. National Geographic Marine Missions

Explore with Jacques the hermit crab and learn that a healthy ocean is a healthy world!

This app from National Geographic Kids teaches children about ocean animals and the importance of water conservation in a fun and interactive adventure game.

53. Draw with Stars ! Play with Musical, Animated and Glowing Shooting Stars

• When touching existing stars, these are turned into shooting stars which fly away in a 3D-like animation and eventually exit the drawing!• Draw with Stars ! is also full of sound effects : musical chimes when stars are created, background summer night sounds, "fly away" sounds... •Multitouch support (draw with your 10 fingers/several people can draw together)

54. Super Stretch Yoga HD

Move, play and breathe as Super Stretch introduces you to his friends and their yoga poses. Super Stretch is your guide who takes you on your journey. Using storytelling, animation and video examples, kids enjoy making NAMASTE a part of their day. NAMASTE is The Adventures of Super Stretch’s secret code to help kids learn to find balance and strength in their lives. Be the best you can be! Practice poses, collect 12 stars and get a team photo.

55. American Girl (Eight apps)

So many girls LOVE all things American Girl, but the price of dolls and accessories sure can add up. Luckily all fans of American Girl Dolls can download and play these eight fun apps! Based on various dolls, kids can make snowcones, play gymnastics and more with these apps.

56. Fun Time Timer

This first version of FunTime is the result of the first passionate 3 weeks of work, as dreamers we are, we hope it really helps thousand of kids all over the world to manage time in a better way, but just by helping one will be good enough for us to let us go to bed happy.

57. Sprout's Doodle Dots

Introducing a fun new activity for your preschooler from the Noodle and Doodle show on Sprout! Your child can use their noodle to connect the dots on their own doodle pad.

Following Sean’s instructions, preschoolers can create many everyday items, using colors, shapes, fruits and of course, numbers to connect the dots. Welcome aboard the Noodle and Doodle bus and see what you can make!

58. Three Melody Street apps

Melody Street make THE most gorgeous educational music apps for kids. I've had these apps on our iPads for several months now and my kids (4,5,7 & 8) ALL come back to them time and time again.

All three are free at the moment so download them all and your kids will get hours of enjoyment from them!

59. Creative Kids

Wiggling mice, giggling colour ghosts, and creepy crawlies - colour pencil drawings come to life with Creative Kids! The app gives children over six a step by step method for creating their own animations and moving images using colour pencils, paper, and a tablet computer. Fine motor skills, creativity, and imagination are stimulated in a playful and fun way.

60. World Wildlife Fund Together

This interactive experience brings you closer to the stories of elephants, whales, rhinos and other fascinating species. Discover their lives and the work of WWF in a way you’ve never seen before. Try out “tiger vision,” stay as still as the polar bear during a hunt, and chop the panda’s bamboo. New species stories — which you can fold and share with the world — are added regularly.

Don't miss any of the Top 100 Completely FREE Apps for Preschoolers! No In-App Purchases! Here are links to all ten pages: